PLATE yi. 



COVER-GLASS PREPARATIONS. 



Pig. 50. — Staphylococcus pyogenes aureus. 



Fig. 51. — Micrococcus gonorrhoese in pus. 



Fig. 62. — Diplococcus pneumoniae in sputum. 



Fig. 53. — Streptococcus pyogenes. 



Fig. 54. — Micrococcus tetragenus. 



Fig. 55. — Sarcina lutea. 



Fig. 56. — Bacillus typhosus. 



Fig. 57. — Bacillus typhosus, showing ' leptrothrix ' forms. 



Fig. 58. — Bacillus typhosus, showing flagella, stained by 

 Ldffler's method. 



Fig. 59. — Bacillus diphtherise. 



Fig. 60. — Bacillus diphtherise — Involution forms. 



Fig. 61. — Proteus vulgaris, showing the lengthened fila- 

 ments. 



